《通分》是小学五年级数学的教学内容。在我区的数学教研活动中吴珍丽和肖羽两位教师都对这一课的教学改革作了一些尝试。两位教师都在创设问题情境、培养学生主动探究、渗透数学思想方法等方面作了一些探索,但 “Pass points” is the fifth grade primary school mathematics teaching content. In my area of ​​mathematics teaching and research activities, both Wu Zhen Li and Xiao Yu two teachers on this lesson teaching reform made some attempts. Both teachers have made some explorations in creating problem situations, developing students’ active exploration and infiltration of mathematical thinking methods, etc. However,